Improvement in water-regulators for steam-boilers



2 Sheets Sheet 1..

Patented Sept. 22,1874.

M. T w. L V .N .I

Attorney s,

UNITED STATES PATENT OFFICE.

ORSON B. KENDALL, OF BUFFALO, NEW YORK.

IMPROVEMENT IN WATER-REGULATORS FOR STEAM-BOILERS.

Specification forming part of Letters Patent No. 155,313, dated September 22, 1874; application filed May 28, 1874.

To all whom "it may concern:

Be it known that I, ()RSON B. KENDALL, of Buffalo, in the county of Erie and in the State of New York, have invented certain new and useful Improvements in Water-Regulators for Steam Boilers; and do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, making a part of this specification.

The nature of my invention consists in the construction and arrangement of a water-regulator for steam-boilers, and valve and gage to be used in connection with said regulator, as will be hereinafter more fully set forth.

In order to enable others skilled in the art to which my invention appertains to make and use the same, I will now proceed to describe its construction and operation referring to the annexed drawings, in which Figure 1 is a side elevation of my entire regulator, including the valve and gage. Fig. 2 is a longitudinal section of the regulator. Figs. 3, 4, and 5 are enlarged sectional detached views of the valve and gage.

A represents the body or middle part of the cylinder, provided with the top and bottom heads B and C, respectively. Both of these heads are semi-spherical in form, the bottom head 0 being cast in one piece with the body A, and the top head cast separate, and fastened to the body by suitable bolts passing through flanges cast on the upper end of the body and on the head. On the upper cylinder-head B is cast the steam-chest D, from which a pipe, E, is to communicate with the steam-space of the boiler to which my invention is attached. The bottom head 0 of the cylinder communicates, by a pipe, G, with the water-space of the boiler near the bottom. In the cylinder A B O is placed a spherical float, H, connected by a rod or link, a, with one end of an arm or lever, I, which passes through the steam-chest, and is at its other end firmly secured on a shaft, 1), passing horizontally through the outer end of the steam-chest. On one end of the shaft b is secured a lever, J, the ends of which are connected by rods (1 d with the ends of a lever, K, secured upon the stem of a valve, L M, in the water-pipe N.

When the float H is down in the position shown in Fig. 2, the valve L M is open, allowing the feed-water to pass through the pipe N into the boiler; and as the water rises in the boiler it rises also in the cylinder A B O, carrying the float with it. The float, as it rises, elevates the arm I, turning the shaft 1) in its bearings, thus also turning the lever J, and, by means of the rods 01 d, closing the valve L M. In like manner, when the float falls, the valve will be opened again.

It will, of course, be understood that the pressure of steam within the cylinder A B O is the same as that within the boiler, and hence the water in the cylinder and in the boiler will always be on a level with each other.

The barrel M of the valve is on one side provided with the inlet 0, and on the opposite side is formed an outlet chamber, P, connected with the interior of the barrel by means of three openings or ports, 6. The plug L of the valve is composed of two parallel disks connected by bars, which form two ports, f, as shown in Fig. 4. These ports are all so arranged that, by turning the plug to a certain point, the three ports 6 are all closed, and at another point they will all-be fully opened; or by turning the plug to the intermediate points the amount of water to .pass through the valve is easily regulated. h is the stem, extending from the plug L, and passing through a suitable stuffing-box or packingnut attached to the barrel of the valve. 011 the end of this stem the lever K is loosely placed, and on the extreme end is firmly secured a pointer, 1%.. The lever K is formed of a flanged circular disk with projecting arms, to the ends of which arms the rods d d are fastened. In the circular center of the lever K is a concentric slot, 6, in about semicircular form, and in the edge of the flange on the opposite side from this slot are a number of notches, w. The tapering end of the pointer R is made beveled on its under side, to enter either of the notches 00. Through the heel of the pointer, and through the slot 6 of the lever, is passed a bolt, m, which screws into a nut, n, flanged to fit in the circular slot 6.

By these means the lever K may be adjusted and held firmly to the valve-stem, so

that by the same stroke of the lever J the valve may be opened to any desired degree to allow more or less Water to pass through the same. The bottom of the plug L turns on an adjustable pivot, 19.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. The combination, with the'cylinder A B G and steam-chest D, of the float H, rod a, lever I, shaft 7), lever J, rods d d, and the adjustable lever K, attached to the valve L M in the Water-pipe N, all substantially as and for the purposes herein set forth.

ORSON B. KENDALL.

Witnesses O. L. EVERT, O. E. KENDALL. 

